This should be fixed in 5.21 upstream: + Version 5.21 + + 1. While previous versions could produce RAR5 volumes of slightly + smaller than requested size sometimes, such situation is less + likely now. In most cases volume size equals to specified by user. + + 2. Now by default RAR skips symbolic links with absolute paths + in link target when extracting. You can enable creating such links + with -ola switch. + + Such links pointing to directories outside of extraction destination + directory can present a security risk. Enable their extraction only + if you are sure that archive contents is safe, such as your own backup.
the first version in unstable containging the fix should be 2:5.3.b2-1. Regards, Salvatore